將觸摸事件從自定義視圖傳遞到活動android

Question

如何將數據從自定義視圖傳遞給父活動？我有自定義視圖中的哪個框被觸摸的數據。我想要在接觸盒子時將這些數據傳遞給父項活動。

這裏是我的活動佈局： 1

編輯： 這裏的父活動：

<RelativeLayout 
    android:layout_width="match_parent" 
    android:layout_height="wrap_content" 
    android:visibility="invisible"> 
    <SearchView 
     android:id="@+id/searchView" 
     android:layout_width="match_parent" 
     android:layout_height="wrap_content" 
     android:layout_centerHorizontal="true" 
     > 
    </SearchView> 
</RelativeLayout> 
<com.example.gaurav.dummyapp.FaceOverlayView 
    xmlns:android="http://schemas.android.com/apk/res/android" 
    android:id="@+id/face_overlay" 
    android:layout_width="match_parent" 
    android:layout_height="match_parent" 
    /> 

FaceOverlayView.java

公共類FaceOverlayView擴展視圖{

private Bitmap mBitmap; 
private SparseArray<Face> mFaces; 
float left = 0; 
float top = 0; 
float right = 0; 
float bottom = 0; 
double sc; 
private String faceData; 

public FaceOverlayView(Context context) { 
    this(context, null); 
} 

public FaceOverlayView(Context context, AttributeSet attrs) { 
    this(context, attrs, 0); 
} 

public FaceOverlayView(Context context, AttributeSet attrs, int defStyleAttr) { 
    super(context, attrs, defStyleAttr); 
} 

public void setBitmap(Bitmap bitmap) { 
    mBitmap = bitmap; 
    FaceDetector detector = new FaceDetector.Builder(getContext()) 
      .setTrackingEnabled(true) 
      .setLandmarkType(FaceDetector.ALL_LANDMARKS) 
      .setMode(FaceDetector.ACCURATE_MODE) 
      .build(); 

    if (!detector.isOperational()) { 
     //Handle contingency 
    } else { 
     Frame frame = new Frame.Builder().setBitmap(bitmap).build(); 
     mFaces = detector.detect(frame); 
     detector.release(); 
    } 
    logFaceData(); 
    invalidate(); 
} 

@Override 
protected void onDraw(Canvas canvas) { 
    super.onDraw(canvas); 

    if ((mBitmap != null) && (mFaces != null)) { 
     double scale = drawBitmap(canvas); 
     drawFaceBox(canvas, scale); 

    } 
} 

private double drawBitmap(Canvas canvas) { 
    double viewWidth = canvas.getWidth(); 
    double viewHeight = canvas.getHeight(); 
    double imageWidth = mBitmap.getWidth(); 
    double imageHeight = mBitmap.getHeight(); 
    double scale = Math.min(viewWidth/imageWidth, viewHeight/imageHeight); 
    sc = scale; 
    Rect destBounds = new Rect(0, 0, (int)(imageWidth * scale), (int)(imageHeight * scale)); 
    canvas.drawBitmap(mBitmap, null, destBounds, null); 
    return scale; 
} 

private void drawFaceBox(Canvas canvas, double scale) { 
    //This should be defined as a member variable rather than 
    //being created on each onDraw request, but left here for 
    //emphasis. 
    Paint paint = new Paint(); 
    paint.setColor(Color.GREEN); 
    paint.setStyle(Paint.Style.STROKE); 
    paint.setStrokeWidth(5); 



    for(int i = 0; i < mFaces.size(); i++) { 
     Face face = mFaces.valueAt(i); 

     left = (float) (face.getPosition().x * scale); 
     top = (float) (face.getPosition().y * scale); 
     right = (float) scale * (face.getPosition().x + face.getWidth()); 
     bottom = (float) scale * (face.getPosition().y + face.getHeight()); 

     canvas.drawRect(left, top, right, bottom, paint); 
    } 
} 

private void drawFaceLandmarks(Canvas canvas, double scale) { 
    Paint paint = new Paint(); 
    paint.setColor(Color.GREEN); 
    paint.setStyle(Paint.Style.STROKE); 
    paint.setStrokeWidth(5); 

    for(int i = 0; i < mFaces.size(); i++) { 
     Face face = mFaces.valueAt(i); 

     for (Landmark landmark : face.getLandmarks()) { 
      int cx = (int) (landmark.getPosition().x * scale); 
      int cy = (int) (landmark.getPosition().y * scale); 
      canvas.drawCircle(cx, cy, 10, paint); 
     } 

    } 
} 

private void logFaceData() { 
    float smilingProbability; 
    float leftEyeOpenProbability; 
    float rightEyeOpenProbability; 
    float eulerY; 
    float eulerZ; 
    for(int i = 0; i < mFaces.size(); i++) { 
     Face face = mFaces.valueAt(i); 

     smilingProbability = face.getIsSmilingProbability(); 
     leftEyeOpenProbability = face.getIsLeftEyeOpenProbability(); 
     rightEyeOpenProbability = face.getIsRightEyeOpenProbability(); 
     eulerY = face.getEulerY(); 
     eulerZ = face.getEulerZ(); 

     Log.e("Face Detection", "Smiling: " + smilingProbability); 
     Log.e("Face Detection", "Left eye open: " + leftEyeOpenProbability); 
     Log.e("Face Detection", "Right eye open: " + rightEyeOpenProbability); 
     Log.e("Face Detection", "Euler Y: " + eulerY); 
     Log.e("Face Detection", "Euler Z: " + eulerZ); 
    } 
} 

@Override 
public boolean onTouchEvent(MotionEvent event) { 
    int action = event.getAction() & MotionEvent.ACTION_MASK; 

    int x = (int) event.getX(); 
    int y = (int) event.getY(); 
    float eulerY; 
    float eulerZ; 
    switch(action) { 
     case MotionEvent.ACTION_DOWN : { 
      for(int i = 0; i < mFaces.size(); i++) { 
       Face face = mFaces.valueAt(i); 

       left = (float) (face.getPosition().x * sc); 
       top = (float) (face.getPosition().y * sc); 
       right = (float) sc * (face.getPosition().x + face.getWidth()); 
       bottom = (float) sc * (face.getPosition().y + face.getHeight()); 

       if((x > left && x < right) && (y > top && y < bottom)){ 
        Log.e("BOX>>>>>>>>>>", String.valueOf(i)); 

       } 
      } 


      break; 
     } 
     case MotionEvent.ACTION_MOVE : { 
      //path.lineTo(event.getX(), event.getY()); 

      break; 
     } 

    } 

    invalidate(); 

    return super.onTouchEvent(event); 
} 

活動課： 公共類dummyActivity擴展AppCompatActivity {

private FaceOverlayView fooView; 


@Override 
protected void onCreate(Bundle savedInstanceState) { 
    super.onCreate(savedInstanceState); 
    setContentView(R.layout.activity_dummy); 
    fooView.setBitmap("bitmap"); 
} 

Answer 1

我想你需要的是onTouchListenter父活動

box_view.setOnTouchListener(new OnTouchListener() { 
    @Override 
    public boolean onTouch(View v, MotionEvent event) { 
     if(event.getAction() == MotionEvent.ACTION_UP){ 

      // Do what you want/Get data from view etc... depends what kind of data it is, can you explain more? 
      return true; 
     } 
     return false; 
    } 
}); 

我認爲你有保持箱內一個文本框整數值，所以你的onTouch

tv_box_1.getText(); 
//To get the text of the box1 (do for tv_box_2.getText) etc... 
//after that just convert to integer 
Integer.parseInt(tv_box_1.getText()); 

裏面你可以做的另一種方式，implemen觸摸父內部的觸摸並處理觸摸，做一些ifs來檢查視圖ID和處理該

另一種方式，更容易的是給框內的TextView的兩個方向的match_parent和設置onClick，它的更容易，如果你不需要觸摸，你應該使用這個數字